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Government releases shark catch data

Government releases shark catch data

18 February 2014

The State Government has released details of the first three weeks of its new drum line initiative, part of a $23million shark hazard mitigation program.

  • Comprehensive catch data released for metro, South-West drum lines
  • Fisheries and contract crews report high success rate in disposing of large sharks and releasing sharks under three metres
  • Onboard operations and equipment modified to improve shark handling, tagging and vessel movements
  • No by-catch of other fish species or marine mammals

The State Government has released details of the first three weeks of its new drum line initiative, part of a $23million shark hazard mitigation program. 

The South-West contractor (who commenced January 25) has caught 23 sharks in total, disposing of 13 tiger sharks over three metres in length, and successfully releasing six smaller sharks.

Since February 1, Department of Fisheries crews operating at the five metropolitan beach sites have caught 43 sharks.  Four tiger sharks have been disposed of, 34 have been released.  Some 28 of these sharks have been tagged with ID tags to assist with research and shark tracking. 

In total, 49 sharks were under three metres in length, nine were dead and 40 were released alive. These figures are current as at 6pm, Sunday, February 16. 

Fisheries Minister Ken Baston said today the early results showed the methods used by the crews were working well. 

“We have caught and destroyed a number of large sharks within one kilometre of selected beaches, at a time of year when our beaches are crowded.  This catch data proves there are a large number of big sharks near these beaches,” Mr Baston said. 

Both the South-West contractor and the Fisheries crews have been able to successfully release the vast majority (82 per cent) of any sharks under three metres, with no by-catch of other marine species. 

“We believe the hook and bait systems we are using are successfully targeting larger sharks and not other fish species, and I commend the crews who have been diligent in releasing as many caught sharks as possible,” the Minister said. 

The Fisheries vessel used in metropolitan waters has been modified with a specially constructed ramp and sea water circulation system to ensure sharks smaller than three metres survived.

“The crews try to support the shark while it is being measured, tag it where possible and release the shark out at sea if time allows,” Mr Baston said. 

Fact File (as at February 16)

  • 17 drum lines have been set at metropolitan beach sites - Ocean Reef/Mullaloo, Trigg/Scarborough, Floreat/City Beach, North Cottesloe/Cottesloe, Leighton/Port
  • 3 previous drum line sites at Old Dunsborough, Meelup/Castle Rock and Cape Naturaliste, moved after February 10
  • Currently there are 20 drum lines at South-West surf spots at Gracetown, Moses Rock and Yallingup
  • 66 sharks caught in total; 23 in the South-West and 43 in the metropolitan area
  • 63 were tiger sharks, two were mako and one caught was a blacktip shark
  • Drum line initiative part of $23million investment in research, monitoring, aerial surveillance, beach enclosures and public education
METRO – commenced 31 January
DATE TIME LOCATION SPECIES OF SHARK SIZE SEX ACTION TAKEN
31-01-2014 11:00 North Cottesloe Tiger 1.8m F Alive/Released
31-01-2014 11:25 Cottesloe Tiger 2.6m F Alive/Released
01-02-2014 06:45 Leighton Tiger 2.6m F Dead
01-02-2014 10:30 Scarborough Tiger 2.34m F Alive/Released
04-02-2014 06:35 North Cottesloe Tiger 1.73m F Alive/Released
04-02-2014 12:35 Mullaloo Tiger 2.51m F Alive/Released
04-02-2014 16:49 City Beach Tiger 2.91m F Alive/Released
05-02-2014 06:30 Leighton Tiger 2.0m F Dead
05-02-2014 07:30 Scarborough Tiger 2.3m F Alive/Released
07-02-2014 07:07 Scarborough Tiger Approx. 2.0m Undetermined Dead
07-02-2014 14:51 Floreat Tiger 2.37m F Alive/Released
08-02-2014 06:23 City Beach Tiger 2.2m F Alive/Released
08-02-2014 07:39 Mullaloo Tiger 2.5m Undetermined Alive/Released
08-02-2014 07:53 Mullaloo Tiger 2.2m Undetermined Dead
08-02-2014 12:55 Leighton Tiger 1.93m M Alive/Released
08-02-2014 16:26 Port Beach Tiger 2.16m F Alive/Released
10-02-2014 06:13 Leighton Beach Tiger 2.8m F Alive/Released
10-02-2014 06:38 Leighton Beach Tiger 2.5m F Alive/Released
10-02-2014 07:30 City Beach Tiger 2.7m F Alive/Released
10-02-2014 07:41 City Beach Tiger 2.8m M Alive/Released
10-02-2014 15:16 Mullaloo Tiger 2.79m F Alive/Released
11-02-2014 06:30 Leighton Beach Tiger 3.73m F Alive/Destroyed
11-02-2014 14:06 Scarborough Tiger 3.7m F Alive/Destroyed
12-02-2014 06:13 Leighton Beach Tiger 3.5m F Alive/Destroyed
13-02-2014 06:37 Leighton Beach Tiger 2.12m F Alive/Released
13-02-2014 07:36 Floreat Tiger 2.36m F Alive/Released
13-02-2014 08:03 Floreat Tiger 2.36m M Alive/Released
13-02-2014 09:07 Mullaloo Tiger 2.2m M Alive/Released
13-02-2014 09:30 Mullaloo Tiger 3.47m M Alive/Destroyed
13-02-2014 16:30 Floreat Tiger Approx. 2.8m F Alive/Released
14-02-2014 06:45 Leighton Beach Tiger 2.4m F Alive/Released
14-02-2014 07:32 North Cottesloe Tiger 2.33m F Alive/Released
14-02-2014 07:56 Floreat Tiger Unknown F Alive/Self-Released
14-02-2014 09:38 North Cottesloe Tiger 1.82m F Alive/Released
14-02-2014 14:26 Trigg Tiger 2.85m M Dead
14-02-2014> 16:13 Scarborough Tiger 2.31m F Alive/Released
14-02-2014 16:46 Floreat Tiger 2.2m F Alive/Released
14-02-2014 17:04 Floreat Tiger 2.25m F Alive/Released
14-02-2014 17:20 Floreat Tiger 1.53m F Alive/Released
15-02-2014 06:11 Leighton Tiger 1.55m M Alive/Released
15-02-2014 07:00 Floreat Tiger 2.5m M Alive/Released
15-02-2014 07:35 Scarborough Tiger 2.8m M Alive/Released
16-02-2014 06:45 Floreat Tiger 2.4m F Alive/Released
SOUTH WEST – commenced 25 January
DATE TIME LOCATION SPECIES OF SHARK SIZE SEX STATUS
26-01-2014 08:30 Meelup Beach Tiger 3.3m F Alive/Destroyed
29-01-2014 11:30 Rocky Point Mako 2.0m M Dead
01-02-2014 07.15 Eagle Bay Mako 1.7m Undetermined Dead
01-02-2014 11:30 Eagle Bay Tiger 3.5m F Alive/Destroyed
01-02-2014 17:15 Rocky Point Tiger 3.2m F Alive/Destroyed
02-02-2014 06:30 Old Dunsborough Tiger 2.7m F Alive/Released
02-02-2014 07:45 Castle Rock Tiger 3.5m F Alive/Destroyed
03-02-2014 07:15 Castle Rock Tiger 3.0m M Alive/Destroyed
03-02-2014 14:00 Castle Rock Tiger 3.0m M Alive/Destroyed
04-02-2014 07:00 Castle Rock Tiger 3.1m M Alive/Destroyed
05-02-2014 06:30 Old Dunsborough Tiger 2.5m F Alive/Released
05-02-2014 07:45 Old Dunsborough Tiger 3.0m M Alive/Destroyed
05-02-2014 11:15 Castle Rock Tiger 2.3m F Alive/Released
06-02-2014 11:45 Cape Naturaliste Blacktip 1.8m F Alive/Released
06-02-2014 17:10 Old Dunsborough Tiger 2.1m F Alive/Released
07-02-2014 07:00 Castle Rock Tiger 3.3m M Alive/Destroyed
07-02-2014 09:30 Rocky Point Tiger Approx. 3.0m M Dead
07-02-2014 17:30 Old Dunsborough Tiger 3.3m M Alive/Destroyed
08-02-2014 06:30 Castle Rock Tiger 2.75m F Dead
08-02-2014 08:02 Eagle Bay Tiger 2.75m F Dead
09-02-2014 07:00 Castle Rock Tiger 2.5m M Alive/Released
11-02-2014 08:30 Rocky Point Tiger 3.1m F Alive/Destroyed
11-02-2014 09:20 Bunker Bay Tiger 4.1m F Alive/Destroyed
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